SYNTHESIS OF A PHENOLIC ANALOG OF APHIDICOLIN - DIMINISHED STEREOSELECTION IN INTRAMOLECULAR 6-EXO HECK REACTIONS OF SUBSTRATES HAVING A HYDROCARBON TETHER
Mm. Abelman et al., SYNTHESIS OF A PHENOLIC ANALOG OF APHIDICOLIN - DIMINISHED STEREOSELECTION IN INTRAMOLECULAR 6-EXO HECK REACTIONS OF SUBSTRATES HAVING A HYDROCARBON TETHER, Synlett, (12), 1997, pp. 1469-1471
Spirotetracycle 14, generated by intramolecular Heck cyclization of 13
, was converted to the phenolic analog 20 of aphidicolin. That the nat
ure of the tether connecting insertion partners can dramatically alter
diastereoselection in intramolecular Heck reactions is also demonstra
ted.